Curable jettable fluid for making a flexographic printing master
a technology of jettable fluid and flexographic printing, which is applied in the direction of foil printing, printing reproduction, inks, etc., can solve the problems of nozzle diameter, low viscosity inks, and relief images that cannot be released from the substrate, and achieve excellent physical properties
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example 1
[0135]The curable fluids INV-01, INV-02 and COMP-01 to COMP-03 were prepared by mixing the ingredients listed in Table 1.
TABLE 1Ingredient(wt. %)COMP-01COMP-02COMP-03INV-01INV-02Laromer TBCH47.0047.0047.0041.1841.18ACMO4.004.004.003.643.64SR61021.00——21.0021.00SR230—21.00—10.00—Miramer M202——21.00—10.00Genomer 112212.0012.0012.009.090.09DAP10.0010.0010.009.099.09Agfarad0.700.700.700.700.70Irgacure 8195.005.005.005.005.00BYK UV-35100.300.300.300.300.30
[0136]To evaluate the usefulness as UV curable fluid for making a flexographic printing master by means of inkjet, the viscosity of the fluids and the hardness, elongation at break, creep recovery, solvent resistance and the pliability (or flexibility) of the cured fluids were evaluated.
[0137]The viscosity of the curable jettable fluids was measured with a Brookfield DV-II+Pro viscometer using the programs 6T (25° C., 6 rpm) and 12T (45° C., 12 rpm).
Hardness Determination
[0138]Standard measurements of the hardness of various su...
example 2
[0176]The curable fluids INV-03 to INV-06 and COMP-04 were prepared by mixing the ingredients listed in Table 3.
TABLE 3Ingredient(wt. %)COMP-04INV-03INV-04INV-05INV-06Laromer TBCH47.9041.6038.5041.6041.18SR61015.1013.1012.1013.1012.40Miramer M202—11.0011.00——CD561———11.0011.00Genomer 112217.4016.0017.4016.50DAP11.1011.1011.1011.1011.10SR489——5.50——Agfarad0.700.700.700.700.70BAPO5.005.005.005.005.00Ebecryl 13600.040.040.300.300.30
[0177]To evaluate the usefulness as UV curable fluid for making a flexographic printing master by means of inkjet, the viscosity of the fluids and the hardness, elongation at break, creep recovery, solvent resistance and the pliability (or flexibility) of the cured fluids were evaluated, as described under example 1.
[0178]The results are shown in Table 4.
TABLE 4hardnesselongationcreepsolvent(Shore A)at breakrecoveryresistanceflexibilityCOMP-04OKOKOKNOKOKINV-03OKOKOKOKOKINV-04OKOKOKOKOKINV-05OKOKOKOKOKINV-06OKOKOKOKOK
[0179]It is clear from Table 4 that all in...
example 3
[0180]The curable fluids INV-07 to INV-14 were prepared by mixing the ingredients listed in Table 5.
TABLE 5Ingredient(wt. %)INV-07INV-08INV-09INV-10INV-11Laromer TBCH41.6039.2041.6047.9047.90SR61013.1012.4017.4013.1012.40SR268US11.0015.0011.00——SR272———11.0015.00SR230—————Genomer 112217.4016.5013.1017.4016.50DAP11.1011.1011.1011.1011.10SR489——5.50——Agfarad0.700.700.700.700.70BAPO5.005.005.005.005.00Ebecryl 13600.040.040.300.300.30Ingredient(wt. %)INV-12INV-13INV-14Laromer TBCH41.6038.5041.60SR61013.1012.1013.10SR268US———SR27211.0011.00—SR230——11.00Genomer 112217.4016.0017.40DAP5.6011.1011.10SR4895.605.50—Agfarad0.700.700.70BAPO5.005.005.00Ebecryl 13600.040.040.30
[0181]To evaluate the usefulness as UV curable fluid for making a flexographic printing master by means of inkjet, the viscosity of the fluids and the hardness, elongation at break, creep recovery, solvent resistance and the pliability (or flexibility) of the cured fluids were evaluated, as described under example 1.
[0182]Th...
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